立彬の日本語
その講堂の外壁はひどく黒ずんでいる。その原因の一つは酸性雨である。
tbd
The outside walls of the auditorium are terribly stained. It is, in part, due to acid rain.
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その， そん， 其の
1. that, the
2. part (as in "part two")
3. um ..., er ..., uh ...
那个；部分（如“第二部分”）
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講堂， こうどう
1. auditorium, lecture hall
tbd
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外壁， がいへき， そとかべ
1. outer wall
外墙
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黒ずむ， くろずむ
1. to blacken, to darken
tbd
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原因， げんいん， げいいん
1. cause, origin, source
原因
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一つ， １つ， 一， ひとつ
1. one
2. for one thing
3. only
4. (not) even
5. just (e.g. "just try it")
6. some kind of, one type of
1个
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酸性雨， さんせいう
1. acid rain
tbd
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である
1. be, is
是、=です、=だ
の
1. indicates possessive
2. nominalizes verbs and adjectives
3. substitutes for "ga" in subordinate phrases
4. (at sentence-end, falling tone) indicates a confident conclusion
5. (at sentence-end) indicates emotional emphasis
6. (at sentence-end, risi...
句尾起强调作用；助词，表示所有关系
は
1. indicates sentence topic
2. indicates contrast with another option (stated or unstated)
3. adds emphasis
指示句子的主题